There are 4 fuses that are used to power up different parts of the cruse system all are in the inside fuse box ( under the left side of the dash ) fuse #32 10amp, fuse #27 10amp, fuse #17 15amp, fuse #38 15amp, the main unit fuse is the #32.

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open the hood and check to see that the throttle cables are not out of place, if everything looks ok then unhook the cruise control cable from the throttle body (black plastic end) by pulling up on the cable end. this will disable your cruise control from making your car accelerate at unwanted times. sounds like there may be a problem with the cruise control servo.

The owner's manual will have a fuse box diagram for both fuse boxes. If you don't have the owner's manual a dealership will usually let you look at a diagram or possibly even print one off for you. There may also be a diagram on the fuse box itself or on the fuse box cover. There is also a horn relay that may be bad but that won't affect the cruise control. Please rate this answer, thanks.

There should be a fuse specifically for the cruise. Look in the owners manual to find out where your fuse box is located, then there will be a diagram of the layout of the fuses. Check the fuse that coresponds with your cruise control.

couple things could had appened first the cruise control module or cru may have went out could be a malfuntion in the with some speed sensors or the vaccum lines have gotten to dry rotted to do the job necessary to maintain the speed

the fuse panel is under the plastic panel on the left of the steering wheel, the cruise does not have a deicated fuse, it is controlled by the powertrain control module, if the truck runs the cruise has power, the most common cause of the cruise being inop is he rotating contact under the steering wheel, it is called the clock-spring contact